A goalkeeper in a game of football pulls his hands backwards after holding the ball shot at the goal. This enables the goal keeper to (a) exert larger force on the ball (b) reduce the force exerted by the ball on hands (c) increase the rate of change of momentum (d) decrease the rate of change of momentum

Answer: (b) reduce the force exerted by the ball on hands and (d) decrease the rate of change of momentum

After holding the ball, the goalkeeper pulls his hands backwards to slow down the rate of change of momentum while increasing the time. Because force is directly related to the rate of change of momentum, this allows less force to be exerted on his hands.

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